Electromechanical device



A ril 15, 1947. H. FUC-HS 9,0 4

ELECTRO- MECHANICAL DEVICE Filed 1380.2, 1942 I IN V EN TOR.

Patented Apr. 15, 1947 Harry Fuchs, New York, N. Y. I

Appiication December 2, 1942, Serial No. 467,624

8 Claims. (Cl. 74-463) This invention relates to an electro-mechanical.device which in part or in its entirety has many different uses indifferent fields.

One object of the invention is to provide the continuous rotary movementof a shaft or pulley by a vibratory element, which may be a belt orother suitable element, with means for adjusting the tension between thevibrating element and the pulley, and intermediate means bearing againstthe vibrating element or equivalent to automatically compensate for wearof the pulley and! or vibrating element.

Another object of the invention is to provide a continuously operatingelectroresponsive device that will automatically take up and hold tautan intermittently released tape or other longitudinal material, withoutthe necessity of having a loop in the tape to actuate a start-stopdevice which operates a motor for taking up the t pe.

Still another object of the invention is to provide vibration-absorbingmeans for a portion of the tape, which may be optically projected upon ascreen, whereby vibrations from the continuously operating device or thesource of the tape will not reach the said portion of the tape.

Still other objects of the invention will appear hereinafter and withinthe scope of the appended claims.

This invention accordingly consists in the method, system, combinationsof elements, arrangements of parts, and in the several steps andrelation and order of each of the same to one or more of the others, aswill be disclosed herein. The many novel features embraced in thisinvention are far-reaching in their scope and are applicable in manyembodiments other than described here, and I therefore do not Wish to belimited except as indicated within the scope of the appended claims andequivalents.

By way of illustration, one embodiment of this invention may be used fortaking up, pulling, and optically projecting tape immediately upon itsrelease by a stock quotation, news, or other ticker machine. This is avery great improvement over devices used heretofore, wherein asillustrated in Fig. 1, tape lil from a ticker machine moves rightwardlyas indicated by the arrow. As the tape I is ejected and released by theticker each time a quotation or other visible intelligence is Iimpressed thereon, the optically projected portion I! of the taperemains stationary while a vertically moving roller I2 descends, keepingthe tape taut, and when the said roller reaches a predetermined point inits downward travel it actuates a motor device which pulls the tapeacross a slot whereirom it is projected upon a screen. y

It is obvious that the movement of the tape across the projection slotis subsequent to the ejection of the tape from the ticker machine andthat quotations, or other-intelligence, on the tape forming the loop itare delayed for a time until the vertically moving roller i2 reaches thepoint at which it actuat-es the tape pulley motor. This delay inprojecting the quotations from the tape due to the formation of the loopI3 necessary for actuating the start-stop device operatingthe tapepulling motor, whereby the tape is moved across an optical projector,very often results in considerable loss to traders in the offices ofstock brokers who predicate their buying and selling orders inaccordance with the quotations on the tape being projected.

It is therefore an object of thisinvention to provide the method andmeans to efiect movement andoptical projection of the tape substantiallyconcurrently upon its ejection and release by the ticker machine,instead of subsequently to the formation of the loop l3 with theconsequent serious losses as indicated above.

In the schematic drawings, which are simplified for purpose ofclearness, Fig. 2 illustrates the electroresponsive device, which may beposi tioned on oneside of a base or panel, for taking up the tape; Fig.3 illustrates the tape on the take-up platform operated by theelectroresponsive device and optical means for projecting a portion ofthe tape; and Fig. 4 illustrates in a modification a roller tensionedagainst a'drum for moving the tape. H

Fig. 1 illustrates an embodiment in the old art wherein a loop is formedafter ejection of the tape by the ticker machine and the stockquotations are thereby delayed before projection-upon ascreen.

- Referring to Fig. 2,6 1 indicates a shaft-upon which is secured thepulley l5 encircled by a belt Is one end of which is secured toavibratable armature H and the other end-to means ltffor adjusting thelength of the belt, and this adjusting means It! may be a variable screwor rack feed or other equivalent device. I9 indicates an angular elementhaving an offset 20 carrying a spring 2| to which is secured thearmature l1, and the other offset 22 carries a non-magnetic intermediateelement 23 which may be of resilient material such for instance asrubber, leather or fiber, and one of the objects of this intermediateelement 23 is to prevent physical contact of the armature I1 with theelectromagnetic core 24, or equivalent. When alternatin or interruptedor other kind of electric current from lines 25 and 26 passes throughelectromagnet 2! it will vibrate armature ll whereby belt l6 will causepulley l to rotate in a direction. It will be observed that the ends ofthe belt [6 cross each other at an angle, and one of the most importantelements is the spring 28, or equivalent, exerting its force against anintermediate part of belt Hi to compensate for dimensional or otherchanges in the belt and/or pulley l5 due to wear, humidity, temperature,etc. Another important element is the rheostat, or other variable device23 which cooperates with electromagnet 21 to produce a new and usefulresult, that of varying and providing the minimum pull on a tape priorto its release by a ticker or other continuous strip machine or supplysource, and also to effect movement of the tape at a speed which islower than the speed at which the tape is released.

In Fig. 3, the take up reel or platform 30. which may be positioned onthe opposite side of the base or panel to which the structure shown inFig. 2 is attached, is secured to shaft M. The tape 3| moves leftwardlyin accordance with its release, such as from a stock ticker, and the endthereof being secured to shaft M in a manner well known to those skilledin the art, the successive layers of tape form a coil 32 which isremoved when the coil reaches a certain size. The projector 33 opticallyprojects upon a suitab e screen or surface that portion of the tape 3|which is between the vibration-absorbing guides 34 and 35,

It is obvious that as the size of coil 32 increases, the take-up speedof the tape 3| decreases, and where a constant take-up speed andmovement of the tape is desired, I have used an arrangement asshowninFig,4.

In Fig. 4 the roller 36 is held in the frame 3? which is pivoted at 33and tensioned by spring 39, whereby roller 36 is tensioned against drum40 secured to shaft l4, and the tape 3| passing therebetween is pulledby drum 40 as the tensioned roller 36 presses against it.

In operation, the pulley I5 is constantly being urged to rotate in adirection, as for instance through the vibration of armature H, but itwill not pull or move the tape until it has been released by the stockticker or other device. Where the roller and drum device is used to pullthe tape, as shOWn in Fig. 4, the drum 49 may rotate and yet will notpull the tape until it is released by thestock ticker or other device. Ihave also obtained excellent results by adjusting the current varyingdevice 29 whereby the tape is pulled at a lower speed than the operatingspeed of the stock ticker, and of course a governor and other well-knowndevices may be used to effect smooth and steady movement of the tape asit travels across the projector 33.

It will be understood that the disclosures in the specification anddrawing are merely for purpose of illustration, and that many otherarrangements and modifications fall within the scope of the appendedclaims.

I claim:

1. An electro-mechanioal device comprising a pulley, an armature, africtional element secured to the armature and adapted to intermittentlyengage the pulley and move it upon vibration of the armature, anelectromagnetic coil adapted to actuate the armature, and a resilientelement positioned in the path of movement of the armature and adaptedto be struck by the armature upon the energization of theelectromagnetic coil.

2. An electro-mechanical device comprising an electromagnetic coilassembly having two offsets, an armature carried by one of the saidoffsets and adapted to be actuated by the electromagnetic coil, theother one of the said offsets adapted to be struck by the armature uponthe actuation of the armature by the electromagetic coil, a rotatableelement, and mean secured to the armature adapted to intermittentlyengage the rotatable element and move it upon vibration of the armature.

3. An electro-mechanical device comprising a rotatable element, anangular element having an offset, an armature supported by said offset,an electromagnetic coil secured to said angular element and adapted toactuate the armature, means secured to the armature adaptedtoi'ntermittently engage the rotatable element and move it uponvibration of the armature, and a resilient element adapted to cushionthe impact of the armature at the end of its stroke upon the actuationof the armature by the electromagnetic coil.

4. An electro-mechanical device comprising a rotatable element, anarmature, a frictional element secured to the armature and adapted tointermittently engage the rotatable element and move it upon vibrationof the armature; an electroresponsive device adapted to actuate thearmature, and a resilient element adapted to cushion the impact of thearmature after the actuation of the armature by the electroresponsivedevice.

5. A device comprising a pulley, an armature, a support, a beltencircling the pulley having one end thereof secured to the armature andthe other end to the support, means adapted to vibrate the armaturewhereby the belt secured to the armature will intermittently engage thepulley and move it in a direction, and a spring exertin tension on thebelt independently of the said support.

6. A device comprising a pulley, an armature, a support, a beltencircling the pulley having one end thereof secured to the armature andthe other end to the support, mean adapted to vibrate the armaturewhereby the belt secured to the armature will intermittently engage thepulley and move it in a direction, and a spring exerting tension on thebelt independently of the support and preceding the attachment of thebelt to the support.

7. A device comprising an angular element having two legs in angularrelation to one another,

an electromagnet having two poles one of which is secured to one of thesaid legs, an armature associated with the other of the said legs andadapted to be actuated by the other pole of the electromagnet, a pulley,a support, a belt encir-; cling the pulley having one end thereofsecured to the armature and the other end to the support, and a springexerting tension on the belt independently of the said support.

8. The combination of a pulley, a belt encircling the pulley having oneend thereof secured to an armature and the other end to adjusting means,means for vibrating the armature whereby the belt will rotate thepulley, and a spring exerting tension on the belt independently of theadjusting means.

HARRY FUCHS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Number 20 542,409

6 Name Date Eitzen June 23, 1936 Landis Aug. 8, 1939 Paterson June 29,1909 Decker May 21, 1935 OLeary Apr. 8, 1924 McDonald Jan. 7, 1919McDonald Nov. 8, 1921 McDonald Nov. 8, 1921 McDonald Nov, 8, 1921Mansbendel June 8, 1926 Mansbendel Oct. 31, 1922 Ramsey May 24, 1921Landis Aug. 8, 1939 Eitzen Sept. 8, 1931 Newman et a1 Sept. 4, 1934Weinheim May 12, 1931 FOREIGN PATENTS Country Date France Aug, 11, 1922

